Roller-skate.



Patented Oct. 8, I901.

P. JASSMANN.

ROLLER SKATE.

.1 Application filed. Apr. 16, 1.901.)

(No Model.)

I II "I "ll INVENTOH M L/ 'j 772017172 W/ TN E SS5 8 m: mus nrrzns cu.ma num wAsNmaTo UNiTED STATES,

PATENT OFFicE.

PAUL JASSMANN, Oh BROOKLYN, NEYV YORK.

ROLLER- SKATE.

SPECIFIGATION forming part of Letters Patent No. 684,260, dated October8, 1901.

Application filed April 16,1901.

To all whom, it ntay concern:

Be it known that I, PAUL J ASSMANN, a citizen of the United States, anda resident of the city of N ew York, borough of Brooklyn, in the countyof Kings and Stateof New York, have ,invented a new and ImprovedRoller-Skate,

of which the following is a full, clear, and exact description.

The invention relates to roller skates in which a foot-rest is gearedwith one of the wheels and is moved downward by the weight of the skaterand upward by a spring.

The object of the invention is to provide a new and improvedroller-skate which is simple and durable in construction, easilyattached to the foot, and arranged to transmit the downward motion ofthe foot-rest to one of the wheels to propel the roller-skate and theskater at a high rate of speed.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claim.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in both theviews.

Figure 1 is a side elevation of the improvement with parts in section,and Fig. 2 is a plan view of the same.

The roller-skate consists, essentially, of a frame A, in which isjournaled afront wheel B and a rear wheel 0, and said frame A supports anumber of guide-posts D, on which is mounted to slide vertically afoot-rest E, normally held in an uppermost position by springs F, coiledon the guide-posts D and resting with their lower ends on the frame Aand their upper ends on washers D, engaging the under side of thefoot-rest E. The footrest E has suitable fastening means G for securingthe foot of the skater in place on the said foot-rest E.

On the rear end of the foot-rest E is secured a pawl H, pressed on by aspring I and adapted to engage the vertical portion of an endlesssprocket-chain J, passing over a sprocketwheel K, secured to the rear ordriving wheel 0 of the roller-skate. The sprocket-chain J passes overidlers L L, journaled one above the other on the frame A, the portionextend- Serialllo. 56,043. (No model.)

ing between the said idlers being adapted to be engaged by thespring-pressed pawl H. The pawl H is prevented from turning backward bya square heel formed on the pawl and engaging a relatively stationaryshoulder. The spring I tends to engage together with the heel andshoulder.

As each of the skaters feet is provided with a rollerskate of thecharacter described, it is evident that in skating along the weight ofthe skater is transferred to the roller-skate on the ground at the time,so that the footrest E in this skate is pressed downward against thetension of its spring F, and this downward movement of the foot-restcauses the pawl H to impart movement to the sprocket-chain J and turnthe sprocket-wheel K and the rear'wheel C to propel the skate and theskater forward. when the skater plants the other skate down on theground and lifts the previously-acting skate 0d the ground, then thesprings F return the footrest E to a normal uppermost position, the pawlH gliding over the sprocket-chain J. It is understood that in themeantime the other skate is actuated in the manner above described-thatis, the weight of the operator on the foot-rest E causes a downwardmovement of the foot-rest to propel the rear wheel 0 in the mannerdescribed by the pawl imparting movement to the sprocket-chain J.

In order to stop the forward motion of a skate whenever it is desired todo so by the skater, a brake N is provided, fulcrumed on the frame A andadapted to engage the tire of the front wheel B. The pivoted brake N isconnected at its rear end with a rope 0, extending upwardly and takenhold of by the operator with one hand, so that the skater upon pullingthe rope moves the brake N in engagement with the tire of the frontwheel B to stop the forward motion of the skater.

The frame A between the wheels B O is depressed to come as near to theground as possible, and thereby bring the foot-rest slightly above thecenters of the wheels at the time the foot-rest is in an uppermostposition. By this arrangement the skater can properly steer and at thesame time great stability is obtained, so that the skater is not liableto tip over and sprain the ankle.

Having thus fully described my invention,

I claim as new anddesire to secn re by Letters in triangular form with avertically-extend- Patenting run, anda spring-actuated pawl on the Aroller-skate, comprising a frame, front foot-rest and working with saidverticallyand rear wheels journaled therein, gnidedisposed run of thesprocket-chain. 153,, gposts mounted vertically on the frame, afoot- Intestimony whereof I have signed my' name to this specification in thepresence of two subscribing Witnesses. I PAUL J ASSMANN.

rest arranged to slide on the guide-posts, springs bearing between theframe and footrest to hold it yieldingly in raised position, asprocket-chain in connection with one of the 10 wheels, guide-pulleysover which the chain runs, said guide-pulleys disposing the chain\Vitnesses:

FELIX W. PATERMAN, SAMUEL LORING.

